Simplify appview automod

[dholms]

Since we're running a dedicated auto-mod service, we can pull the abyss & fuzzy matcher tests out of the in-appview automod.

Once we verify that img labeling is working correctly in the new auto-mod, we can fully deprecate the indexer automod

[bnewbold]

This looks directionally correct to me:

• only in AppView, PDS still does some keyword stuff (eg, when creating account, changing handle, and some record updates like display name)
• removing abyss from appview indexing: check, automod is doing this in prod
• removing appview-side keyword checks resulting in mod reports: check, automod is doing this in prod